STD 12 - 5. molecular basis of inheritance — BIOLOGY STD 12 Science — Question

Graafian follicle occur :

Which one of the following is highly evolved

‘Second line of defence' is known as

Bishnois of Rajasthan are famous for protection of:

Exploitation of bioresources of a nation by multinational companies without authorization from the concerned country is referred to as

The age and distribution of a population is determined by the:

Which one of the following pairs is a sedimentary type of biogeochemical cycle?

Below are given in one column four methods of achieving contraception and in other column four methods of their working. Choose the correct match from Column-II with Column-I:

Column-I Methods	Column-II Working Methods
1. Pills	i. Inhibit the sperms to reach cervix
2. Condom	ii. Not allow the implantation
2. Vas deferens	iii. Stoppage of ovulation
3. Copper-T	iv. sperms in semen

Select the incorrect Statement regarding DNA replication with respect to the template strand:

Which technique made it possible to genetically engineering living organisms.